Saw-mill carriage



(No Model) G. MLHINKLEY.

SAW MILL 0ARRIAGE'. I No. 330,484. Patented 0v. 17,1885.

I-NVEJV'TOR,

e Mginl'lez Attorneys.

N, PETERS. Pllclo'Lllllogmpher, Wnshinglon. 0.0

. of the carriage, as usual.

Niia STATES GEORGE HINKLEY, OF MILWAUKEE, WVISOONSIN.

SAW-MILL CARRIAGE.

SPECIFICATION forming part of Letters Patent No. 330,484, dated November17, 1885.

Application filed January 26, 1885. Serial No. 154,037. (No model.)

To all whom it may concern:

Be it known that I, GEORGE M. HINKLEY, of Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented certain new and usefulImprovements in Offsetting Devices for Saw-Mill Carriages, of which thefollowing is a specification.

My invention relates to that class of sawmill carriages in which thelog-frame and the operating mechanism carried thereby are shifted bodilyin a line at right angles to the line of travel of the carriagepreparatory to gigging back; and it consists in various features anddetails of construction hereinafter more fully set forth.

In the drawings, Figure 1 is a front elevation of a portion of asaw-mill carriage embodying my improvements, and Fig. 2 averticaltransverse section of the same.

The letters A A indicate the timbers which go to make up thecarriage-frame,which frame is adapted to receive and support theheadblocks B with their movable knees O in the usual manner. Thecarriage with its appurtenances is supported on axles D by boxes orbearings E, secured to the carriage-timbers, as shown in Fig. 2. Theaxles D are carried by wheels F G, fixed thereon, the former grooved asshown and adapted to run on the correspondingly-shaped rails H, and theother adapted to run on the flat rail I, as is usual, the axles andwheels constituting atruck to support the body Each axle D is extendedout beyond its wheel F, as shown in Fig. 2, and ,is provided with twocollars, a b, between which is fixed a third collar or clutch, c. Theaxles D are an inch (more or less) longer between the hubs of the wheelsF Gthan the width of the carriage or the distance between the outer endsof the boxes E,which support the carriage on the axles.

J indicates a bracket secured to the side of the carriage-frame, and'inwhich is journaled a shaft, K, extending parallel with the side of thecarriage, as shown in Figs. 1 and 2. Im-

mediately over the axles D the shaft K has secured upon it bifurcatedclutches L, the arms d d of which enter grooves or recesses e in theclutch-collar c, as shown more clearly in Fig. 1. The arms d d preventthe rotation of the clutch-collar 0 upon the axles D,while the collars ab prevent any movement thereof longitudinally upon the axles.

M indicates a hand-lever (one or more) keyed or otherwise firmly securedto the shaft K, and adapted to rock the latter in its bearings J, aswillbereadily understood. Upon the side of the lever M is a pin or stud,f,which rides under a spring, 9, secured to the carriage and retains thelever in either position, as indicated in Fig. 2.

From the foregoing it will be seen that the arms d (1 form a fulcrum forblocks L, which blocks, being swung or rocked upon said fulcrum by themovement of lever M, and consequent rocking of shaft K, move the frameor carriage along the axles.

Preparatory to making a cut the lever is thrown forward to the positionshown in dotted lines in Fig. 2, moving the frame or carriage upon theaxles to the position shown in dotted lines in Fig. 2, and then, bymeans of any suitable or usual setting mechanism, the knees are setforward far enough to insure the required cut or the desired thicknessof board or slab. The carriage is then moved forward past the saw N, andthe required out being thus made the carriage is ready to be giggedback, according to the present custom. It will be seen that in thusgigging back, the carriage or the log or cant is liable to encounter theedge of the saw if the latter springs or wabbles even slightly, and thusthe saw is in danger of being injured, and the cant or log is apt to bedisfigured. Before gigging back, therefore, I throw lever M back againto the position shown in full lines in Fig. 1,which moves the entirecarriage, its head-blocks, knees, and cant or log clear of the saw N,and so far therefrom that there can be no possible danger ofencountering it on the return movement of the carriage. Thus thecarriage is moved toward the saw before each cut and away from the sawafter each cut by the quick and simple movement of a lever, and theseoperations are wholly independent of the customary setting up of thecant or log, which is performed now as before.

It will be seen that the shaft K can be hung below the axles D, insteadof above, as shown, the result being simply a reversal of the movementof the hand-lever.

It will also be observed that the collars a b 0 can be placed upon theaxles D, between the boxes E, in which case the shaft K, instead ofbeing upon the outside of the carriage,will be within the same. I,however, prefer the arrangement shown and described, as it is moreaccessible than the other plans suggested.

The number of clutches L used will depend upon the number of trucksemployed, butone for each axle D will be found advisable.

Having thus described my invention, what I claim is 1. In combinationwith axles D, boxes E, and wheels F G, said boxes being secured to theframe and mounted upon the axles, brackets. J, secured to said frame,shaft K, provided with forked arm L, fulcrumed in a block secured toaxle D, and lever M, secured to the shaft, substantially as shown anddescribed.

2. In combination with a saw-mill carriage and a guiding-track therefor,a collar secured to an axle of the carriage, and a lever j ournaled onthe log frame of the carriage and fulcrumed in the collar, substantiallyas set forth, whereby it is adapted to shift the carriage upon theaxles.

3. In combination with frame A and boxes E, secured to the frame, axlesD, wheels F G, adapted to run on tracks H I, collars a 'b, rigidlysecured upon the axle, collar a, loosely mounted between said collars ab, bracket J, secured to the frame A, shaft K, journaled in the bracketand provided with clutch-arms L and hand-lever M, the arms L engagingwith the collar 0, stud f upon the lever, and spring 9 on the carriage,all arranged and operating as set forth.

GEORGE M. HINKLEY.

